Basin.



W. A. DUNLAP.

BASIN.

APPLIOATION FILED MAY 27, 1912.

1,0755%, Patented 0011 11913.

wrrN asses:

.my improvements;

.shown in Fig. 2.

Erica.

WILLIAM A. DUNLAP, OF PITTSBURGH, PENNSYLVANIA.

BASIN.

Specification of Letters Patent.

Patented @ct. 14L, 191 3.

'Application filed May 27, 1912. Serial No. 699,899.

To all whom, it may concern:

Be it known that I, WILLIAM A. DUNLAP, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, a citizen of the United States, have invented or discovered certain new and useful Imrovements in Basins, of which improvements the following is a specification.

The invention described herein relates to certain improvements in basins, sinks, etc., of the class or kind described and claimed in an application filed by me on May 6th, 1908, Ser. No. 431,387.

In the\ accompanying drawings forming a part of this specificatlon' Figure lis a sectional elevation of a wash-bowl embodying Figs. 2, 3 and 4 are views illustrative of the steps involved in the formation of the connection from the overflow to the discharge outlet.

In the pra'ctice of my invention the bowl 1, roll 2, apron 3 and back-piece 4; are formed preferably by stamping from a sheetof sheet steel. In the stamping operation a portion of the wall of the bowl is pressed outwardly to form a U-shaped groove 5 as By means of suitable tools known in the art the metal at the junction of this U-shaped portion and the wall of the bowl is gradually-, forced inward as shown in Figs. 3 and 4 "to-form a closed tube 7 shown-in Fig. 4. In closing in the edges of the 'U j'shaped portion suitablyshaped plugs are inserted where the overflow and the discharge outlets are to be formedso that when closmg the edges of the groove. openings will be left as indicated at 8 and 9 for these outlets. The opening 10 for connection with the 'waste pipe is preferably formed prior to the closing in of the edges of the U-shaped portion to form a tube. The meeting edges (1 of the tube are preferably welded or brazed together as indicated in Fig. 4. After thebowl has been completedv a continuous unbrokencoating of protecting material, preferably enamel, is applied to the surfaces both interior and exterior, by dipping the bowl in a bath of the material of which the coating isto be formed.- In addition to covering the surfaces both interior and exterior of the bowl and the overflow pipe this coating will hermetically seal all the joints.

I- claim as my invention:

1. A basin, sink, etc., formed of-sheet metal and provided with overflow and discharge openings, and-having its wall bent'to form a tubular conduit connecting said openings.

2. A basin, sink, etc., formed of sheet metal and provided with overflow and discharge. openings, and having its wall bent to form a tubular conduit connecting said openings, the basin and conduit having all interior and exterior surfaces covered by a continuous coatin of enamel.

In testimony w ereof I have my hand.

- WILLIAM A. DUNLAP.

Witnesses: FRANCIS J. TOMASSEN, FRIEDA E. WOLFF.

hereunto set all 

